dbtsai opened a new pull request #27728: [SPARK-17636][SQL] Nested Field Predicate Pushdown for Parquet URL: https://github.com/apache/spark/pull/27728 ### What changes were proposed in this pull request? 1. `DataSourceStrategy.scala` is extended to create `org.apache.spark.sql.sources.Filter` from nested expressions. 2. Translation from nested `org.apache.spark.sql.sources.Filter` to `org.apache.parquet.filter2.predicate.FilterPredicate` is implemented to support nested predicate pushdown for Parquet. ### Why are the changes needed? Better performance for handling nested predicate pushdown. ### Does this PR introduce any user-facing change? No ### How was this patch tested? New tests are added.
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